title: Oxford phase 3 unicompartmental knee arthroplasty in Japan--clinical results in greater than one thousand cases over ten years.
abstract: There are few reports of the Oxford unicompartmental knee arthroplasty (UKA) survival rate in Asia. This study describes outcomes of 1279 Oxford UKAs for Japanese patients. The mean follow-up was 5.2 years. We divided patients into two groups based on preoperative indications (extended indications group and strict indications group). The Oxford knee score improved from 22.3 to 40.8 (P=0.041). The 10-year survival rate using revision was 95%. A total of 25 UKAs (2.0%) required revision. The most common reason was subsidence of tibial component. The 5-year cumulative survival rate of the strict indications group was significantly higher than that of the extended indications group (99.1% vs. 93.8%, P<0.001). When we followed inclusion criteria strictly, good clinical results were achieved in Asia.
authors.affiliation: Yoshida Orthopaedic Clinic, 2-20-16, Hannan-cho, Abeno-ku, Osaka,, Japan.
authors.forename: Kenjiro
authors.initials: K
authors.lastname: Yoshida
authors.forename: Masahiro
authors.initials: M
authors.lastname: Tada
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Yoshida
authors.forename: Satoshi
authors.initials: S
authors.lastname: Takei
authors.forename: Shinichi
authors.initials: S
authors.lastname: Fukuoka
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Nakamura
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee; D006801:Humans; D007564:Japan; D007720:Knee Prosthesis; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery*; D010020:Osteonecrosis / Q000601:surgery*; D012086:Reoperation
keywords: Oxford UKA; clinical results; osteoarthritis mobile bearing; unicompartmental knee arthroplasty